The "Split-Brain Condition section and the Split-Brain Detection and Prevention" section is new for the 3.3.0 release. What to read next Split-Brain ConditionWhen the HA link is disconnected or when the Active and Standby Edges fail to communicate with each other, both Edges assume the Active role. As a result, both Edges start responding to ARP requests on their LAN interfaces. This causes LAN traffic to be forwarded to both Edges, which could result in spanning tree loops on the LAN. Split-Brain Detection and PreventionThe primary Gateway is used to prevent split-brain conditions. Parent topic: Configure VCE High Availability